The design process of arc gate is analyzed, and design methods of knowledge model, inference model and data structure of intelligent CAD system in arc gate are discussed.

分析了弧形闸门设计过程，探讨了弧形闸门智能CAD系统的知识模型和推理模型及其数据结构的设计方法。

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The paper introduces video intelligent transportation system and its application in toll-gate system of SuJiaHang speedway.

论文介绍了视频智能交通系统以及它在苏嘉杭高速公路系统中的应用。

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This paper introduces an intelligent district gate guard control system based on message drive. This system has resolved the problems of complex input parameters, high real-time and security demands.

本文给出了一种基于消息驱动的智能小区门警控制系统设计，该系统解决了输入参数复杂、实时性和安全要求高的矛盾。

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